Finding the Fourth Proportional to 314,929,609.80, 472,394,414.70 and 133,176,787.80
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Solution
The fourth proportional to 314,929,609.80, 472,394,414.70 and 133,176,787.80 is: 199,765,181.70
Step by Step Solution
- Step 1: Write the proportion equation
314,929,609.80 : 472,394,414.70 = 133,176,787.80 : x - Step 2: Convert to fraction form
314,929,609.80/472,394,414.70 = 133,176,787.80/x - Step 3: Cross multiply
314,929,609.80x = 472,394,414.70 × 133,176,787.80 - Step 4: Simplify right side
314,929,609.80x = 62,911,970,724,407,096 - Step 5: Solve for x
x = 62,911,970,724,407,096/314,929,609.80 - Step 6: Final answer
x = 199,765,181.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.